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J Pediatr. 2004 Nov;145(5):593-9.

Trends in severe brain injury and neurodevelopmental outcome in premature newborn infants: the role of cystic periventricular leukomalacia.

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  • 1Department of Pediatrics, University of California San Francisco, CA 94143-0663, USA.

Abstract

OBJECTIVES:

To determine if the incidence of sonographically detected cystic periventricular leukomalacia (PVL) and periventricular hemorrhagic infarction (PVHI) have changed over the past decade and to determine if a decline in cystic PVL was associated with a change in neurodevelopmental outcome.

STUDY DESIGN:

Premature newborn infants admitted to our intensive care nursery from 1992 to 2002 were identified in a comprehensive nursery database. Premature newborn infants had routine neurosonography by means of a standardized protocol. Infants weighing < or =1500 g at birth surviving to nursery discharge were enrolled in a nursery follow-up clinic.

RESULTS:

Adjusting for gestational age, there was a significant decrease in cystic PVL from 1992 to 2002 (P=.003) without a concurrent decrease in PVHI (P=0.5). Cystic PVL and PVHI accounted for only 9 of the 28 cases of cerebral palsy and 12 of 90 cases of abnormal Developmental Scores in infants weighing <1500 g at birth. The decline in cystic PVL was not associated with improved developmental outcome from 1992 to 2002.

CONCLUSIONS:

The incidence of cystic PVL declined significantly from 1992 to 2002 at our center. Cystic PVL was detected by ultrasound in a minority of infants with abnormal neurodevelopmental outcome, indicating that other forms of cerebral injury account for the majority of abnormal neurodevelopmental outcomes in premature newborn infants.

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PMID:
15520756
[PubMed - indexed for MEDLINE]
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